Answer:

a.This article contributes to the assessment of public policies to control the incidence of COVID-19 in several ways. (1) It contains a brief historical and comparative overview of selected pandemics, particularly in relation to the COVID-19 pandemic; (2) It provides a simple original model which could be used to prioritize the admission of COVID-19 sufferers to hospital (taking into account available hospital capacity) and (3) it specifies a second model to evaluate desired social choices involving the trade-off between the severity of social restrictions (taking into account their impact on the incidence of COVID-19) and the level of economic activity. Bergson-type welfare functions are utilized in the second model. It also critically examines the proposition that the isolation (lockdown) of social groups is a desirable method of limiting the incidence of COVID-

Explanation:

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